CA · ONT
Cheap flights to Ontario
Round trips from $590 per traveler, taxes and fees included. Compare fares from every US city, see which airlines fly nonstop, and pick the cheapest month to travel.
Destination guide
Los Angeles: Beaches, studios and year-round sunshine
Los Angeles is a sprawl of beach towns, hillside neighborhoods and studio lots tied together by freeways. LAX is the main gateway, but Burbank, Long Beach and Orange County airports are smaller, calmer and often closer to where you're staying.
- Griffith Observatory
- Santa Monica Pier and Venice Beach
- The Getty Center
- Studio tours
Popular routes to Ontario
Lowest round-trip fares we found over the next three months, per traveler with taxes and fees. Select a route for airlines, flight times and fares by month.
Flying to Ontario: common questions
Which airport should I fly into for Ontario?
Ontario International Airport (ONT) is the airport for Ontario. Every fare we show for Ontario lands there.
Which airlines fly to Ontario?
Several airlines serve Ontario with connecting itineraries from the US. Run a search from your home airport to see every option.
How much are flights to Ontario?
Over the next three months, the lowest round-trip fare we track to Ontario is $590 per traveler including taxes and fees. Fares vary by departure city, day of week and how far ahead you book — see each route page for the cheapest month.
When is the best time to visit Ontario?
March–May and September–November have warm, dry days and thinner crowds. June can be gray at the coast ('June gloom'); fall is the warmest beach season.